Move Dockerfile tomopy installation up in order
Move Dockerfile tomopy installation up in order

This will allow for faster development, so that tomopy does not
need to be re-installed each time the developer changes the tomviz
python code.

Signed-off-by: Patrick Avery <743342299f279e7a8c3ff5eb40671fce3e95f13a@kitware.com>

OpenChemistry/tomviz,OpenChemistry/tomviz,OpenChemistry/tomviz,OpenChemistry/tomviz